Compound for insulating electric wires



UNITED STATES PATENT OFFICE.

LOUIS HILL, OF WATERBURY, CONNECTICUT.

COMPOUND FO R INSULATING ELECTRIC WIRES.

SPECIFICATION forming part of Letters Patent No. 472,352, dated April 5,1892.

Application filed July 11, 1891. $erial No. 399,228. (No specimens.)

The object of my invention is to produce material for the purposespecified which shall be effectual in the performance of its functions.

With this object in view the invention consists in composition of matteras hereinafter 20 set forth, and pointed out in the claim.

specification in the presence of two subscrib- 3 5 ing witnesses.

LOUIS HILL.

Witnesses:

WM. J. SoHLEeEL,

EDWARD F. COLE.

